EFFECT OF A TRANSVERSE MAGNETIC-FIELD ON TUNNELING IN SINGLE-BARRIER AND DOUBLE-BARRIER STRUCTURES

被引：18
作者：
FROMHOLD, TM
SHEARD, FW
TOOMBS, GA
机构：
[1] Department of Physics, University of Nottingham, Nottingham
来源：
SURFACE SCIENCE | 1990年 / 228卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(90)90346-A
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Magneto-oscillations in the current through single-barrier heterostructures have been observed, due to electrons tunneling from a 2DEG in a lightly-doped emitter into interfacial Landau states (skipping orbits) in the collector contact. We have calculated the dependence of tunnel current on magnetic field and bias voltage using the Bardeen transfer Hamiltonian approach within a WKB approximation. A physical interpretation of the results is given in terms of the effect of the magnetic field on barrier transmission and on the amplitudes of the confined wave functions. The model is extended to double-barrier structures. © 1990.
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收藏
页码：437 / 440
页数：4
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